Nailor Industries Inc. - NailorCatalog ... · PDF filecone, removable core design is available in most ceiling module sizes, ... • Steel stamped shapes for uniformity. • High neck

CEILING DIFFUSERS

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GENERAL PRODUCT OVERVIEWCeiling DiffusersQuality Assured Products, unobtrusive clean lines for appearance, careful engineering and professional workmanship with the backingof an industry leader - these add up to true value; prime reasons for specifying Nailor Ceiling Diffusers.

Architectural excellence and engineering selections demand high quality products and shipping schedules demand service, all part ofthe package.

Models 6500, 6500IV, 6400, 6550

SQUARE AND RECTANGULAR PATTERNNailor’s pattern diffusers are typically used in applications whereconsiderable volumes of air are required while maintaining relatively lownoise levels and pressure drops. A full range of models are availableand consist of a choice of corrosion-resistant steel or aluminumconstruction, fixed and adjustable patterns, as well as extra highcapacity models. Induction vanes are also available for those jobs thatrequire quick equalization of cool and warm air such as in VAV systemswith high cooling loads. The louvered cores are removable and areavailable in an assortment of patterns.

Steel High Capacity Construction – Fiberglass PlenumFixed Pattern Model 6500FP Page D18Steel Construction – Fixed Pattern Model 6500 Page D14Adjustable Pattern Model 6550 Page D14Induction Vane Model 6500IV Page D39Suffix '-O' adds a steel OBDAluminum Construction – Fixed Pattern Model 6200 Page D14Adjustable Pattern Model 6250 Page D14Induction Vane Model 6200IV Page D39Suffix '-O' adds a steel OBDSuffix '-OA' adds an aluminum OBDAluminum High Capacity Construction – 100% Aluminum Model 6200-MRI Page D20Fixed Pattern Model 6400 Page D46Induction Vane Model 6400IV Page D65Suffix '-O' adds a steel OBDSuffix '-OA' adds an aluminum OBD

STAMPED SQUAREThese diffusers are a very popular choice for general air distributionapplications. The diffusers are designed to provide high performanceat a cost effective price. The stamped one-piece cones and die-formedclean curves supply a 360° diffusion pattern and provide the highperformance necessary in VAV systems. Integral round necks providea secure connection for flexible duct applications. Nailor’s "classic" four-cone, removable core design is available in most ceiling module sizes,a choice of corrosion-resistant steel or aluminum, and an option of fixedor adjustable patterns. A two and three cone fixed pattern diffuser alsoaccompanies this series.Steel Construction – Fixed Pattern Model RNS Page D87Adjustable Pattern Model RNSA Page D91Fixed Pattern 3 Cone Model RNS3 Page D95Fixed Pattern 2 Cone Model RNS2 Page D98Aluminum Construction – Fixed Pattern Model ARNS Page D87Adjustable Pattern Model ARNSA Page D91Fixed Pattern 3 Cone Model ARNS3 Page D95Models RNS, ARNSA, RNS2

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EXCLUSIVE WARRANTY FORNAILOR STEEL GRILLES,

REGISTERS AND DIFFUSERS

LIMITED WARRANTY – SERIES 61C, 6100, 61EC, 61F, RNS, RNS2,UNI, 4300, 6500, 7500 AND 61CC

Nailor Industries Inc. ('Nailor') warrants to the original and each subsequent owner of anew Nailor Series Grille, Register or Ceiling Air Diffuser in the model series titled above,constructed of corrosion-resistant steel that should rust become visible on the exposedportion of any individual product covered by this agreement Nailor will replace the rustedunit. Any diffuser affected by chemicals or misuse, including, without limitation, the failureto perform reasonable and necessary maintenance, will not be covered by this warranty.This warranty is for sixty (60) months from the date of the shipment by Nailor.

This warranty gives you specific legal rights and you may also have other rights whichvary from state to state.

The rusted unit will be shipped by the owner at its cost to Nailor for replacement. The cost of the replacement, including the cost of shipment to the owner, but excludingany costs for either the removal or preparation for shipment of the rusted unit and there-installation of the replacement unit, will be borne by Nailor. A reasonable time shouldbe allowed after shipment to Nailor for the replacement of the rusted unit.

This is the only warranty given with the purchase. Any warranties implied by laware limited to sixty (60) months from the date of shipment by Nailor. Nailor neitherassumes nor authorizes any person to assume for it any other liability inconnection with any diffuser covered by this agreement.

No payment or other compensation will be made for indirect or consequentialdamage such as, damage or injury to person or property or loss of revenue orprofit which might be paid, incurred or sustained by reason of the use or inability touse a Nailor product listed above, even if such loss or damage could have beenforeseen by Nailor.

Some states do not allow the exclusion of limitation of incidental or consequentialdamages or limitation on how long an implied warranty lasts, so the above may not applyto you.

STAMPED SQUARE CEILING DIFFUSERS

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STAMPED SQUARE CEILING DIFFUSERS• FIXED AIR PATTERN• HIGH PERFORMANCE• SQUARE FACE • ROUND NECK

Model Series RNS Square Ceiling Air Diffusers have been specially designed to provide an extremely cost effective, valueengineered product. They offer both the unobtrusive appearance required for architectural excellence and the 360° diffusion patternat minimum NC levels required for high engineering performance. For these reasons the RNS Series diffuser is the most popularchoice for general applications.

The stamped one-piece cones eliminate mitered corners and the die-formed curves provide consistent quality and performance. Thestepped down core design increases capacity and minimizes streaking and smudging of the ceiling.

The diffusers provide stable diffusion and mixing patterns under constant and changing load conditions and are particularly suitablefor variable air volume systems.

The diffusers are available with various frame/border designs to suit many ceiling systems including surface mount, T-Bar lay-in, andpanel applications. Standard finish is a high quality baked enamel for long life and easy cleaning. A variety of neck sizes are availableto suit your system design. The collar is a full 1 1/4" (32) in height for easy, secure connection. Steel models are available in all sizeand frame type combinations. Aluminum models are available in a 24" x 24" (610 x 610) and a 20" x 20" (508 x 508) full face Type Lframe module and 12" x 12" (305 x 305) modules with a full face Type L or Type S frame.

Model RNS

Models:RNS SteelARNS Aluminum

STANDARD FEATURES:• Spring loaded core is securely held inposition and is removable without the useof tools.

• Engineered air diffusion patterns.

• Steel stamped shapes for uniformity.

• High neck collars for solid connection.

• All 12" x 12" (305 x 305) and 24" x 24"(610 x 610) modules feature four conesin all neck sizes, providing a uniform and balanced appearance. The 20" x 20" (508 x 508) module has three cones.

• Screwdriver adjustment of the optionalbalancing damper is achieved throughthe inner cone assembly.

• Optional QB Quadrant Blanks for 1, 2and 3-way blow. (See page D267).

CONSTRUCTION MATERIAL:Heavy gauge, corrosion-resistant steel oraluminum with miscellaneous steelcomponents.

FINISH OPTIONS:AW Appliance White finish is standard.Other finishes are available.

OPTIONS & ACCESSORIES:4250 Radial Sliding Blade Damper 6" – 14" (152 – 356).

4275 Radial Opposed Blade Damper 5" – 24" (127 – 610).

4675 Butterfly Damper 6" – 14" (152 – 356).

EX External Foil-Back Insulation (installed) – R-4.2.

EXB External Foil-Back Insulation (loose) – R-4.2.

MIB Molded Insulation Blanket – R-6.0.

EQT Earthquake TabsFor more options and accessories, seepage D255

Type L Lay-in, T-Bar Frame12 x 12 (300 x 300) and

24 x 24 (600 x 600) modules

* Supplied with a reducer.

Dimensional Data

CM = CEILING MODULE

D = NOM. DUCT DIA.

D - 1/8" (3)

CM - 1/4" (6)

N

1 1/8" (29)

A

Ceiling Module CM Imperial Units (inches) Metric Units (mm)ImperialModules

MetricModules

Duct SizeD

N A B FDuct Size

DN A B F

12 x 12 300 x 3004* 3 1/4

1 11 13102* 83

25 279 3305, 6,7, 8 1 1/4 127, 152,

178, 203 32

24 x 24 600 x 6006, 8, 10,

12, 14, 151 1/4 2 5/16 22 24 3/4

152, 203,254, 305,356, 381

32 59 559 629


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DIMENSIONAL DATA AND FRAME TYPES:

MODELS RNS AND ARNS

OVERALL = F

CEILING OPENING = CM - 1" (25)CM = CEILING MODULE

CM - 1/4" (6)

CM = CEILING MODULE

CEILING OPENING = BCEILING OPENING = CM + 1/4" (6)

CM - 1/4" (6)CM = CEILING MODULE DFA

FRAME(ORDERED

SEPARATELY)

CM + 1 1/2" (38)

Type L Surface Mount Type L Surface Mount with DFA

3/8" (10)

CM = CEILING MODULE

CM - 1/16" (2)

CM - 1/4" (6)

5/16"(8)

CM - 5/8" (16)9/16" (14)

CM = CEILING MODULECM = CEILING MODULE

CM - 1/16" (2)

13/16"(21)

Type F Fineline® Type M Metal Pan (Snap-in) Type SP Spline

For one directional exposed T-bar or fully concealed grid.

One spline on two opposite sides, steel lift bracket on others.

Hard duct connection recommended.

D - 1/8" (3)

D = NOMINAL DUCT DIA.

CM = CEILING MODULE

N

1 1/8" (29)

CM - 1/4" (6)

FACE SIZE

A

Type PL Panel Mounted Lay-in T-Bar

Type S Surface Mount

D = NOMINAL ROUNDDUCT DIA.D - 1/8" (3)

CM - 1/4" (6)CM = CEILING MODULE

1/2"(13)

2 1/4" (57)

1 1/4" (32)

Type L Lay-in T-Bar20" x 20" (500 x 500) module

Drywall/Plaster Frame. Recommended forflexible duct and ceiling access.

The 20 x 20 (500 x 500) module is onlyavailable in this frame style.


Fineline ® is a registered trademark of USG Interiors Inc.

* Supplied with a reducer. Panel mount is available with Model RNS only.

Ceiling ModuleCM

Imperial Units(inches)

Metric Units(mm)

ImperialModules

MetricModules

DuctSize D

BDuct

Size DB

20 x 20 500 x 5006, 8,10

18 1/2152, 203,

254470

Ceiling ModuleCM

Imperial Units(inches)

Metric Units(mm)

ImperialModules

MetricModules

FaceSize

DuctSize D

N AFaceSize

DuctSize D

N A

24 x 2424 x 1220 x 20

600 x 600600 x 300500 x 500

12x

12

4*5, 6,7, 8

3 1/41

300x

300

102,127, 152,178, 203

8325

1 1/4 32

30 x 30750

x750

24x

24

6, 8,10, 12,14, 15

1 1/4 2 5/16600

x600

152, 203,254, 305,356, 381

32 59

48 x 241200

x600

24x

24

6, 8,10, 12,14, 15

1 1/4 2 5/16600

x600

152, 203,254, 305,356, 381

32 59


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Nominal Neck Velocity, FPM 400 500 600 700 800 900 1000 1200 1400 1600 Neck Size VP .010 .016 .023 .031 .040 .051 .063 .090 .122 .160 TP .014 .022 .032 .043 .056 .071 .088 .126 .172 .224 4" Airflow, CFM 35 44 52 61 70 79 87 105 122 140 Dia. T 1-2-4 2-2-5 2-3-5 2-3-6 2-4-7 3-4-7 3-5-7 4-5-8 4-6-9 5-7-9 NC — — — — — 11 19 25 30 35 TP .017 .026 .038 .051 .067 .085 .105 .151 .206 .269 5" Airflow, CFM 55 68 82 95 109 123 136 164 191 218 Dia. T 2-2-5 2-3-6 2-4-6 2-4-7 2-5-8 3-6-9 4-6-9 5-7-10 5-8-11 6-8-11 NC — — — — — 14 22 28 33 38 TP .018 .029 .043 .060 .079 .100 .128 .175 .250 .325 6" Airflow, CFM 80 100 120 140 160 180 200 235 275 315 Dia. T 1-2-4 1-2-5 1-3-6 2-3-6 2-4-8 3-4-8 3-4-10 4-5-10 4-6-14 5-8-14 NC — — 11 16 20 22 24 31 38 41 TP .022 .035 .050 .068 .089 .112 .138 .199 .271 .354 7" Airflow, CFM 107 134 160 187 214 241 267 321 374 428 Dia. T 2-4-8 3-5-9 4-6-10 4-7-11 5-8-12 5-9-13 6-10-14 7-10-14 9-11-15 10-12-16 NC — — 12 17 20 24 27 33 39 42 TP .031 .047 .065 .087 .110 .140 .168 .235 .310 .395 8" Airflow, CFM 140 175 210 245 280 315 350 420 490 560 Dia. T 3-5-9 4-5-11 5-7-13 5-8-14 6-9-14 6-10-15 7-11-16 8-12-17 10-13-18 11-14-18 NC — — 13 18 22 26 29 35 40 44

Nominal Neck Velocity, FPM 400 500 600 700 800 900 1000 1200 1400 1600 Neck Size VP .010 .016 .023 .031 .040 .051 .063 .090 .122 .160 TP .015 .023 .033 .045 .058 .074 .091 .130 .176 .230 6" Airflow, CFM 80 100 120 140 160 180 200 235 275 315 Dia. T 1-1-3 1-2-4 1-2-4 1-3-5 2-3-6 2-3-6 2-4-7 3-5-8 3-5-8 4-6-9 NC — — 14 18 21 26 29 34 38 41 TP .018 .028 .041 .055 .072 .091 .112 .161 .219 .286 8" Airflow, CFM 140 175 210 245 280 315 350 420 490 560 Dia. T 1-2-5 2-3-6 2-4-6 3-4-7 3-5-7 4-5-8 4-6-8 5-6-9 6-7-10 6-8-11 NC — 11 16 20 23 28 31 36 40 43 TP .023 .036 .052 .071 .092 .117 .144 .207 .281 .367 10" Airflow, CFM 220 270 330 380 435 490 545 655 765 870 Dia. T 2-4-6 3-4-7 4-5-8 4-6-9 5-6-9 5-7-10 6-7-10 6-8-11 7-9-12 8-9-13 NC — 13 18 22 25 30 33 38 42 45

Models RNS and ARNS • 20 x 20 (500 x 500) Face Size

CFM - cubic feet per minute

FPM - feet per minute velocity

TP - total pressure - inches w.g.

VP - velocity pressure - inches w.g.

T - throw in feet

NC - Noise Criteria (values) based on 10 dB room absorption, re 10-12 watts.

Performance Notes:1. Throws are given at 150, 100 and 50fpm terminal velocities, under isothermalconditions.

2. Data derived from tests conducted in accordance with ANSI/ASHRAEStandard 70 – 2006.

3. The addition of quadrant blanksreduces the effective area and for a givenair volume, increases the dischargevelocity. This will result in an increase inthrow, pressure drop and sound level. Todetermine throw, select the diffuser as ifit were supplying a larger volume of air.The table shows the percentage increaserequired to determine selection of diffusersize and throw. To correct pressure dropand NC, use correction factors as shownfor 4-way blow values.

PERFORMANCE DATA:


Neck SizeDiameterin Inches

NominalOverall

Face Size

AkFactor

68

12 x 1212 x 12

0.1310.202

6810121415

24 x 2424 x 2424 x 2424 x 2424 x 2424 x 24

0.1800.2270.3310.4500.5110.625

QuadrantBlanks(Blow)

% Increase in AirVolume for Throw

Determination

% Increase inStatic Pressure

Drop

NC SoundLevel

Increase

1 (3-way)2 (2-way)

35100

125450

819





T - throw in feet

NC - Noise Criteria (values) based on 10 dB room absorption, re 10-12 watts.

Performance Notes:1. Throws are given at 150, 100 and 50fpm terminal velocities, under isothermalconditions.




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Nominal Neck Velocity, FPM 400 500 600 700 800 900 1000 1200 1400 1600 Neck Size VP .010 .016 .023 .031 .040 .051 .063 .090 .122 .160 TP .015 .023 .035 .045 .060 .076 .095 .135 .186 .240 6" Airflow, CFM 80 100 120 140 160 180 200 235 275 315 Dia. T 1-1-4 1-2-5 1-2-6 1-3-7 2-4-9 2-5-9 3-6-11 3-6-12 4-7-14 6-8-15 NC — — — 13 17 21 24 27 32 36 TP .021 .033 .047 .063 .082 .105 .128 .183 .245 .325 8" Airflow, CFM 140 175 210 245 280 315 350 420 490 560 Dia. T 1-1-5 1-2-6 1-3-8 2-4-8 3-5-10 3-6-10 4-6-13 5-8-13 6-8-16 7-10-17 NC — — 13 17 20 25 28 33 37 40 TP .024 .037 .047 .074 .097 .123 .150 .215 .293 .372 10" Airflow, CFM 220 270 330 380 435 490 545 655 765 870 Dia. T 1-3-6 2-4-8 3-5-9 4-6-12 5-6-12 5-7-14 6-9-15 6-10-15 8-13-17 9-13-18 NC — 11 16 20 23 28 31 36 40 43 TP .026 .039 .057 .075 .097 .127 .150 .245 .310 .410 12" Airflow, CFM 315 390 470 550 630 705 785 990 1100 1255 Dia. T 2-3-7 3-4-9 3-5-10 4-6-13 5-7-13 5-8-15 5-8-16 7-9-18 9-11-18 10-12-19 NC — 13 18 21 24 29 32 37 41 44 TP .030 .050 .070 .100 .110 .160 .200 .240 .390 .490 14" Airflow, CFM 425 530 635 745 850 955 1060 1270 1490 1695 Dia. T 3-4-9 4-5-11 4-7-13 5-7-16 6-9-16 7-11-16 7-11-19 9-13-19 11-16-19 11-16-27 NC — 14 19 22 25 29 32 37 42 45 TP .033 .054 .072 .100 .127 .163 .204 .280 .395 .500 15" Airflow, CFM 490 615 735 860 985 1110 1230 1470 1720 1970 Dia. T 5-7-10 6-8-11 7-9-14 8-10-17 8-13-18 10-15-19 11-16-22 12-18-27 13-20-32 15-22-34 NC — 15 20 23 26 30 33 38 43 46

PERFORMANCE DATA:



NominalOverall

Face Size

AkFactor

68

12 x 1212 x 12

0.1310.202

6810121415

24 x 2424 x 2424 x 2424 x 2424 x 2424 x 24

0.1800.2270.3310.4500.5110.625



Determination


Drop

NC SoundLevel

Increase

1 (3-way)2 (2-way)

35100

125450

819


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STAMPED SQUARE CEILING DIFFUSERS• FIXED AIR PATTERN• SQUARE FACE • ROUND NECK• 3 CONE

Model Series RNS3 and ARNS3 Square Ceiling Air Diffusers have been specially designed to provide an extremely cost effective,value engineered product. They offer both the unobtrusive appearance required for architectural excellence and the 360° diffusionpattern at minimum NC levels required for high engineering performance. For these reasons the RNS3 Series diffuser is the mostpopular choice for general applications.

The stamped one-piece cones eliminate mitered corners and the die-formed curves provide consistent quality and performance. Thestepped down core design increases capacity and minimizes streaking and smudging of the ceiling.

The diffusers provide stable diffusion and mixing patterns under constant and changing load conditions and are particularly suitablefor variable air volume systems.

The diffusers are available with a frame/border design to suit a lay-in T-bar ceiling and can also be surface mounted using the optionaldrywall diffuser frame. Standard finish is a high quality baked enamel for long life and easy cleaning. A variety of neck sizes areavailable to suit your system design. The collar is a full 1 1/4" (32) in height for easy, secure connection.

Model RNS3

Models:RNS3 SteelARNS3 Aluminum

STANDARD FEATURES:• Features 3 cones in all neck sizes,providing a uniform and balancedappearance.

• Engineered air diffusion patterns.



• Non-removable core.


CONSTRUCTION MATERIAL:Heavy gauge, corrosion-resistant steel(Model RNS3) or aluminum (ModelARNS3).


OPTIONS & ACCESSORIES:4250 Radial Sliding Blade Damper 6" – 14" (152 – 356).

4275 Radial Opposed Blade Damper 5" – 24" (127 – 610).

4675 Butterfly Damper 6" – 14" (152 – 356).

QB Quadrant Blanks for 1, 2 and 3-way blow. (See page D266).

EX External Foil-Back Insulation (installed) -R-4.2.

EXB External Foil-Back Insulation (loose) -R-4.2.MIB Molded Insulation Blanket – R-6.0.EQT Earthquake Tabs

For additional options and accessories;see page D255.


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MODELS RNS3 AND ARNS3

Type L Lay-in, T-Bar Frame24 x 24 (600 x 600) modules

CM - 1/4" (6)

CM = CEILING MODULE

CEILING OPENING = B

CEILING OPENING = CM + 1/4" (6)


FRAME(ORDERED

SEPARATELY)

CM + 1 1/2" (38)

Type L Surface Mount Type L Surface Mount with DFA Type F Fineline®


CM - 1/4" (6)

5/16"(8)

CM - 5/8" (16)9/16" (14)

CM = CEILING MODULE

CM = CEILING MODULE


D - 1/8" (3)

CM - 1/4" (6)

N

1 1/4" (32)

A

Dimensional Data



Ceiling Module CM Imperial Units (inches) Metric Units (mm)

ImperialModules

MetricModules

Duct SizeD

N A BDuct Size

DN A B

24 x 24 600 x 6006, 8, 10,

12, 14, 151 1/4 2 5/16 22

152, 203,254, 305,356, 381

32 59 559


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T - throw in feetNC - Noise Criteria (values) based on 10 dB room absorption, re 10-12

watts.

Performance Notes:1. Throws are given at 150, 100 and 50fpm terminal velocities under isothermalconditions.

2. If the diffuser is mounted on anexposed duct, multiply throw values by x0.70.

3. All pressures are in inches w.g.. Toobtain static pressure, subtract thevelocitiy pressure from the total pressure.

4. NC (Noise Criteria) values are basedupon 10dB room absorption, re 10-12

watts. Dash (-) in space indicates an NCof less than 15.



Nominal Neck Velocity, FPM 400 500 600 700 800 900 1000 1200 1400 1600 Neck Size Velocity Pressure .010 .016 .023 .031 .040 .051 .063 .090 .122 .160 Total Pressure .017 .027 .038 .052 .068 .086 .106 .153 .208 .272 6" Airflow, CFM 80 100 120 140 160 180 200 235 275 315 Dia. Throw 1-1-4 1-2-5 1-2-6 1-3-7 2-4-9 2-5-9 3-6-11 3-6-12 4-7-14 6-8-15 NC — — — — 16 19 23 29 34 37 Total Pressure .019 .029 .042 .057 .075 .095 .117 .169 .230 .300 8" Airflow, CFM 140 175 210 245 280 315 350 420 490 560 Dia. Throw 1-1-5 1-2-6 1-3-8 2-4-8 3-5-10 3-6-10 4-6-13 5-8-13 6-8-16 7-10-17 NC — — — 15 19 22 26 32 37 40 Total Pressure .021 .032 .046 .063 .083 .104 .129 .186 .253 .330 10" Airflow, CFM 220 270 330 380 435 490 545 655 765 870 Dia. Throw 1-3-6 2-4-8 3-5-9 4-6-12 5-6-12 5-7-14 6-9-15 6-10-15 8-13-17 9-13-18 NC — — — 17 22 25 29 35 39 43 Total Pressure .023 .036 .052 .071 .093 .118 .146 .210 .286 .373 12" Airflow, CFM 315 390 470 550 630 705 785 990 1100 1255 Dia. Throw 2-3-7 3-4-9 3-5-10 4-6-13 5-7-13 5-8-15 5-8-16 7-9-18 9-11-18 10-12-19 NC — — 15 20 25 28 31 37 41 44 Total Pressure .027 .042 .060 .082 .107 .136 .168 .241 .328 .429 14" Airflow, CFM 425 530 635 745 850 955 1060 1270 1490 1695 Dia. Throw 3-4-9 4-5-11 4-7-13 5-7-16 6-9-16 7-11-16 7-11-19 9-13-19 11-16-19 11-16-27 NC — — 19 24 27 31 34 39 43 47 Total Pressure .029 .045 .065 .089 .116 .147 .182 .262 .356 .465 15" Airflow, CFM 490 615 735 860 985 1110 1230 1470 1720 1970 Dia. Throw 5-7-10 6-8-11 7-9-14 8-10-17 8-13-18 10-15-19 11-16-22 12-18-27 13-20-32 15-22-34 NC — 15 21 25 28 32 35 40 44 48

PERFORMANCE DATA:

Models RNS3 and ARNS3 • 24 x 24 (600 x 600) Face Size


NominalOverall

Face Size

AkFactor

6810121415

24 x 2424 x 2424 x 2424 x 2424 x 2424 x 24

0.160.260.370.490.620.68



Determination


Drop

NC SoundLevel

Increase

1 (3-way)2 (2-way)

35100

125450

819


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STAMPED SQUARE CEILING DIFFUSERS• HIGH PERFORMANCE• SQUARE FACE • ROUND NECK• STEEL

Model Series RNS2 Square Ceiling Air Diffuser has been specially designed to provide the mechanical engineer with the most costeffective engineered diffuser currently available in the industry. It combines the high performance expected from a louvered face typeceiling diffuser with a cost as low as any lesser performing commercial diffuser currently available. The RNS2 has a 360° diffusionpattern at minimum NC levels required for high engineering performance. The diffuser provides stable diffusion and mixing patternsunder constant and changing load conditions and is eminently suitable for variable air volume systems. It can accommodate a turndown of 80% without losing the ceiling coanda effect and dumping. The stamped one-piece cones eliminate mitered corners and thedie-formed curves provide consistent quality and performance.

Model RNS2 diffusers are available to suit many situations including surface mount, T-Bar lay-in and panel applications. Standardfinish is a high quality, baked enamel for long life and easy cleaning. A variety of neck sizes are available to suit your system design.The collar is a full 1 1/4" (32) in height for easy, secure connection.

Model RNS2

Models:RNS2 Steel

STANDARD FEATURES:• Engineered air diffusion patterns.



• With 2 cones in all sizes, the diffusersprovide a uniform appearance.


CONSTRUCTION MATERIAL:Heavy gauge, corrosion-resistant steel.


OPTIONS & ACCESSORIES:4250 Radial Sliding Blade Damper 6" – 14" (152 – 356).4275 Radial Opposed Blade Damper 5" – 24" (127 – 610).4675 Butterfly Damper 6" – 14" (152 – 356).

QB Quadrant Blanks for 1, 2 and 3-way blow. (See page D267).

EX External Foil-Back Insulation (installed) -R-4.2.

EXB External Foil-Back Insulation (loose) -R-4.2.MIB Molded Insulation Blanket – R-6.0.EQT Earthquake Tabs

For additional options and accessories;see page D255.

Type L Lay-in, T-Bar Frame Dimensional Data

CM = CEILING MODULE


D - 1/8" (3)

9 3/8" x 9 3/8" (238 x 238) OR17 1/2" x 17 1/2" (445 x 445)

1 1/4" (32)E

A

CM - 1/4" (6)


ImperialModules

MetricModules

DuctSize D

A B E FDuct

Size DA B E F

12 x 12 300 x 3006,8

1 11 1 5/16 13152,203

25 279 33 330

24 x 24 600 x 6006, 8,

10, 12,14, 15

2 5/16 22 15/16 24 3/4152, 203,254, 305,356, 381

59 559 24 629


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MODEL RNS2

OVERALL = F

CEILING OPENING = CM - 1" (25)CM = CEILING MODULE

CM - 1/4" (6)

CM = CEILING MODULE

CEILING OPENING = BCEILING OPENING = CM + 1/4" (6)


FRAME(ORDERED

SEPARATELY)

CM + 1 1/2" (38)

Type L Surface Mount Type L Surface Mount with DFA

3/8" (10)

CM = CEILING MODULE

CM - 1/16" (2)

CM - 1/4" (6)

5/16"(8)

CM - 5/8" (16)9/16" (14)

CM = CEILING MODULE

CM = CEILING MODULE

CM - 1/16" (2)

13/16"(21)

Type F Fineline® Type M Metal Pan (Snap-in) Type SP Spline

For one directional exposed T-bar or fully concealed grid.

One spline on two opposite sides, steel lift bracket on others.


D - 1/8" (3)

D = NOMINALDUCT DIA.

CM = CEILING MODULE

1 1/4" (32)

E

CM - 1/4" (6)

FACE SIZE

A

Type PL Panel Mounted Lay-in T-Bar

Type S Surface Mount



Dimensional Data



ImperialModules

MetricModules

FaceSize

DuctSize

DA E

FaceSize

DuctSize

DA E

24 x 2424 x 1220 x 20

600 x 600600 x 300500 x 500

12x

12

6,8

1 1 5/16300

x300

152,203

25 33


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CFM - cubic feet per minuteFPM - feet per minute velocityTP - total pressure - inches w.g.VP - velocity pressure - inches w.g.T - throw in feetNC - Noise Criteria (values) based on 10 dB room absorption, re 10-12

watts.

Performance Notes:1. Horizontal throws are given at 150, 100and 50 fpm terminal velocities underisothermal conditions.


Nominal Neck Velocity, FPM 400 500 600 700 800 900 1000 1200 1400 1600

Neck VP .010 .016 .023 .031 .040 .051 .063 .090 .122 .160 Size TP .026 .040 .058 .080 .104 .131 .190 .262 .350 .500 6" Airflow, CFM 80 100 120 140 160 180 200 235 275 315 Dia. T 1-2-4 1-2-5 2-2-6 2-3-7 2-4-8 2-4-9 3-5-9 4-6-10 5-7-12 6-8-13 NC — — — 11 14 18 21 27 33 38 TP .043 .065 .092 .125 .165 .210 .257 .400 .540 .740 8" Airflow, CFM 140 175 210 245 280 315 350 420 490 560 Dia. T 1-3-5 2-3-6 2-4-7 3-4-8 3-5-9 4-5-10 5-6-11 6-7-13 6-8-14 7-9-15 NC — 11 16 20 23 27 30 37 42 47 TP .045 .069 .098 .137 .176 .225 .274 .421 .568 .774 10" Airflow, CFM 220 270 330 380 435 490 545 655 765 870 Dia. T 1-3-6 2-3-7 2-4-8 3-4-10 4-5-11 5-6-12 5-7-13 6-8-14 7-9-15 8-10-16 NC 10 15 20 24 28 32 35 40 45 50 TP .046 .070 .100 .140 .180 .230 .280 .430 .580 .790 12" Airflow, CFM 315 390 470 550 630 705 785 990 1100 1255 Dia. T 3-4-7 4-5-9 4-6-10 5-7-11 6-8-12 7-9-13 7-10-14 8-11-15 9-12-16 10-13-17 NC 11 16 21 25 29 33 36 41 46 51 TP .047 .072 .104 .145 .185 .240 .285 .440 .590 .805 14" Airflow, CFM 425 530 635 745 850 955 1060 1270 1490 1695 Dia. T 3-4-7 4-5-9 4-6-10 5-7-11 6-8-12 7-9-13 7-10-14 8-11-15 9-12-16 10-13-17 NC 13 18 23 27 31 34 37 43 53 57 TP .048 .075 .110 .150 .195 .250 .300 .455 .610 .825 15" Airflow, CFM 490 615 735 860 985 1110 1230 1470 1720 1970 Dia. T 4-5-8 4-6-10 5-7-11 6-8-12 6-9-13 7-10-14 8-10-15 9-12-16 10-13-17 11-14-18 NC 14 19 24 29 32 36 39 45 56 60

Model RNS2 • 24 x 24 (600 x 600) Face Size

Nominal Neck Velocity, FPM 400 500 600 700 800 900 1000 1200 1400 1600 Neck VP .010 .016 .023 .031 .040 .051 .063 .090 .122 .160 Size TP .021 .032 .045 .060 .080 .100 .120 .167 .220 .290 6" Airflow, CFM 80 100 120 140 160 180 200 235 275 315 Dia. T 1-2-6 2-3-8 2-4-10 3-5-11 3-6-12 4-7-13 5-9-14 7-10-15 8-11-17 9-13-18 NC — — — — — — — 14 24 34 TP .025 .037 .052 .070 .091 .113 .138 .195 .260 .340 8" Airflow, CFM 140 175 210 245 280 315 350 420 490 560 Dia. T 2-4-10 3-6-13 4-8-15 5-9-16 7-11-17 8-12-19 9-14-20 11-16-22 13-17-23 15-18-26 NC — — — — — — 10 19 27 34

PERFORMANCE DATA:

Model RNS2 • 12 x 12 (300 x 300) Face Size


NominalOverall

Face Size

AkFactor

68

12 x 1212 x 12

0.1570.232

6810121415

24 x 2424 x 2424 x 2424 x 2424 x 2424 x 24

0.1850.2260.2850.3820.5050.577

ARCHITECTURAL SQUARE CEILING DIFFUSERS

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HOW TO ORDER


MODEL SERIES RNS, ARNS, UNI, AUNI AND TWR

EXAMPLE: RNS - 08 - 24 x 24 - L - AW - –

1. Models

Louvered Face RNS Steel, Fixed, 4 Cone RNS3 Steel, Fixed, 3 Cone RNS2 Steel, Fixed, 2 Cone RNSA1 Steel, Adjustable, Sliding Type RNSA2 Steel, Adjustable, Rotating Type ARNS Aluminum, Fixed ARNS3 Aluminum, Fixed, 3 Cone, Non-removable ARNSA Aluminum, Adjustable

Architectural UNI Steel, Concealed Bracketry UNI2 Steel, Corner Posts UNI-RP Steel, Round Plaque AUNI Aluminum, Concealed Bracketry

AUNI2 Aluminum, Four Corner Posts

Downblast UNI-AD Adjustable UNI-PD Fixed, Perforated High Induction TWR Twister

2. Neck Size (inches) 04, 05, 06, 07, 08, 10, 12, 14, 15

3. Ceiling Module Size Imperial (inches) 12 x 12, 20 x 20, 24 x 12, 24 x 24 (default), 30 x 30, 48 x 24 Metric (mm) 300 x 300, 500 x 500, 600 x 300, 600 x 600, 750 x 750, 1200 x 600

4. Frame Type L Lay-in T-Bar/Surface Mount S Surface Mount PL Panel Lay-in T-Bar SP Spline M Metal Pan F Fineline®

TL Tegular Lay-in

5. Finish AW Appliance White (default) AL Aluminum BK Black BW British White MI Mill PC Prime Coat Paint PPA Paint Prepaired Aluminum SP Special Custom Color

OPTIONS & ACCESSORIES:(Default is none unless noted otherwise)

6. MRI Option (AUNI2 only)* MRI MRI Compatible (100% Aluminum)7. Damper 4250 Radial Sliding, 6" - 14" 4275 Radial Opposed Blade, 5" - 24" 4675 Butterfly, 6" - 14"

8. Quadrant Blanks QB3 3-way blow QB2 2-way opposite blow QC2 2-way corner blow QB1 1-way blow

9. External Insulation EX Foil-back (installed), R-4.2 EXB Foil-back (loose), R-4.2 MIB Molded Insulation Blanket R-6.0

10. Extended Inlet Collar ** EIC Extended Inlet Collar (2.25") with bead11. Earthquake Tabs EQT Earthquake Tabs

OTHER OPTIONS & ACCESSORIES: Ceiling Tile Option: (UNI, AUNI only) RC Retaining Channel only RCCF Retaining Channel + Tile Cut & Fitted Air Balancing Devices (order separately) EGR Equalizing Grid DEGR Damper/Equalizing Grid

Notes:1. Consult price pages as to limitations ofmodule, frame type, neck size andaccessories combinations.

2. Face size 20" x 20" (500 x 500) isavailable only in Frame Type L.

3. MIB Molded Insulation Blanket is notavailable on Models RNSA1, RNSA2, andARNSA.

4. Butterfly damper (4675) is not compatiblewith Model RNSA.

5. PPA Finish is available on Aluminummodels only.

6. *Dampers are not available on ModelAUNI2 when MRI option is selected.

7. **Extended Inlet Collar is available forsteel models RNS, RNS3, UNI and UNI2only.

NOMINAL ROUND NECK(DUCT) SIZE

FACESIZE

CEILINGMODULE

4, 5, 6, 7, 8 12 x 12

12 x 1220 x 2024 x 1224 x 24

6, 8, 10 20 x 20 20 x 20

6, 8, 10, 12, 14, 15 24 x 2424 x 2430 x 3048 x 24

BLOW PATTERNS WITH OPTIONAL FACTORY INSTALLED QUADRANT BLANKS.

QB33-wayblow

QC22-waycornerblow

QB22-way

oppositeblow

QB11-wayblow


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SUGGESTED SPECIFICATION:

RNS – Steel Construction

Furnish and install Nailor Model RNS Stamped Square Ceiling Diffusers of the sizes and capacities as shown on the plans andair distribution schedules. The diffuser shall be manufactured from corrosion-resistant steel and have four concentric cones in allsizes, except the 20" x 20" (500 x 500) module size which will consist of three cones. The inner cone assembly is to be removableusing a spring clip arrangement that permits quick, easy installation and removal. The diffuser shall have a removable plug forscrewdriver adjustment of the optional damper without removing the inner core. The finish shall be AW Appliance White (optionalfinishes are available).

The manufacturer shall provide published performance data for the diffuser, which shall be tested in accordance with ANSI/ASHRAEStandard 70 - 2006.

ARNS – Aluminum Construction

Furnish and install Nailor Model ARNS Stamped Square Ceiling Diffusers of the sizes and capacities as shown on the plans andair distribution schedules. The diffuser shall have four die-formed aluminum concentric cones in all sizes, except the 20" x 20" (500x 500) module size which will consist of three cones. The inner cone assembly is to be removable using a spring clip arrangementthat permits quick, easy installation and removal. The diffuser shall have a removable plug for screwdriver adjustment of the optionaldamper without removing the inner core. The finish shall be AW Appliance White (optional finishes are available).



RNSA1, RNSA2 – Steel Construction

Furnish and install Nailor Model (select one) RNSA1 or RNSA2 Adjustable Stamped Square Ceiling Diffusers of the sizes andcapacities as shown on the plans and air distribution schedules. The diffuser shall be manufactured from corrosion-resistant steeland have four concentric cones in all sizes, except the 20" x 20" (500 x 500) module size which will consist of three cones. ModelRNSA1 shall have an adjustable sliding type inner cone assembly that is securely retained by a spring loaded friction arrangement.Model RNSA2 shall have an adjustable rotating type inner cone assembly that is adjusted by rotating the center cone. The innercone assembly is to be removable using a spring clip arrangement that permits quick, easy installation and removal. The diffusershall have a removable plug for screwdriver adjustment of the optional damper without removing the inner core. The finish shall beAW Appliance White (optional finishes are available).


ARNSA – Aluminum Construction

Furnish and install Nailor Model ARNSA Adjustable Stamped Square Ceiling Diffusers of the sizes and capacities as shown onthe plans and air distribution schedules. The diffuser shall have four die-formed aluminum concentric cones in all sizes, except the20" x 20" (500 x 500) module size which will consist of three cones. The diffuser shall have an adjustable sliding type inner coneassembly that is securely retained by a spring loaded friction arrangement. The inner cone assembly is to be removable using aspring clip arrangement that permits quick, easy installation and removal. The diffuser shall have a removable plug for screwdriveradjustment of the optional damper without removing the inner core. The finish shall be AW Appliance White (optional finishes areavailable).



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RNS3 and ARNS3 – Steel or Aluminum Construction

Furnish and install Nailor Model (select one) RNS3 (steel) or ARNS3 (aluminum) Stamped Square Ceiling Diffusers of the sizesand capacities as shown on the plans and air distribution schedules. Model RNS3 shall be manufactured from corrosion-resistantsteel and have three die-formed concentric cones in all sizes. Model ARNS3 shall be manufactured from aluminum with corrosion-resistant steel bracketry. The inner cone assembly is to be non-removable. The diffuser shall have a removable plug for screwdriveradjustment of the optional damper without removing the inner core. The finish shall be AW Appliance White (optional finishes areavailable).



RNS2 – Steel Construction

Furnish and install Nailor Model RNS2 Stamped Square Ceiling Diffusers of the sizes and capacities as shown on the plans andair distribution schedules. The diffuser shall be manufactured from corrosion-resistant steel and incorporate two die-formed concentriccones. The diffuser shall have a removable plug for screwdriver adjustment of the optional damper without removing the inner core.The finish shall be AW Appliance White (optional finishes are available).



TWR 'Twister' – Steel Construction

Furnish and install Nailor Model TWR 'Twister' Ceiling Swirl Diffusers of the sizes and capacities as shown on the plans and airdistribution schedules. The diffuser shall be manufactured from heavy gauge corrosion-resistant steel. Radial induction vanes shallbe one-piece stamped construction. The diffuser is to be sizes to suit a 24" x 24" (600 x 600) ceiling suspension system. The roundduct connection collar shall be an integral part of the diffuser assembly and be not less than 1 1/4" (32) high. The diffuser shall havea removable plug for screwdriver adjustment of the optional damper without removing the inner core. The finish shall be AW ApplianceWhite (optional finishes are available).



UNI – Steel Construction

Furnish and install Nailor Model UNI Square Architectural Ceiling Diffusers of the sizes and capacities as shown on the plansand air distribution schedules. The diffuser shall have a corrosion-resistant steel, stamped outer cone. The inner core shall have aplaque style face. The face shall be double skinned with a hemmed edge. The inner core assembly is to be removable using a springclip arrangement that permits quick, easy installation and removal. The finish shall be AW Appliance White (optional finishes areavailable).


AUNI – Aluminum Construction

Furnish and install Nailor Model AUNI Square Architectural Ceiling Diffusers of the sizes and capacities as shown on the plansand air distribution schedules. The diffuser shall have a heavy gauge aluminum, stamped outer cone. The inner core shall have aplaque style face. The face shall be double skinned with a hemmed edge. The inner core assembly is to be removable using a springclip arrangement that permits quick, easy installation and removal. The finish shall be AW Appliance White (optional finishes areavailable).


CEILING DIFFUSER OPTIONS AND ACCESSORIES

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Model 4675Butterfly Damper

Model 4275Radial OpposedBlade Damper

MOUNTING FRAMES• Surface mount adapter frames for plaster and sheet

rock ceilings are available in steel and aluminum. Theysimplify installation, save time and allow ceilingplenum access.

OPTIONS• A selection of optional items that are available on

ceiling diffusers.

FINISHES• Selection of standard and non-standard finishes to

choose from.

• Baked enamel paint in custom colors to suit architect.

AIR BALANCING DEVICES• Dampers for round and square necks.

• Equalizing grids.

• Volume extractors.

Effective air balancing of an HVAC System requires thecorrect selection, specification and installation of the rightproduct to suit the system design.

Nailor offers a comprehensive range of models andoptions to cover all applications.

Nailor balancing devices are:

• Easy to select and specify. Many items can be orderedor specified as diffuser accessories.

• Designed to offer a smooth, accurate and predictableresponse during adjustment for precise air metering.

• Designed to provide quick access and adjustment.

• Engineered with attention to optimizing airflow, in orderto minimize noise, turbulence and pressure drop.

Model OBDDOpposed Blade Damper

Steel, Duct Mount

Model OBDOpposed Blade Damper

Steel, Neck Mount

Model EGREqualizing Grid

Model EX-1Volume Extractor

Model DFADrywall/Plaster Frame

Surface MountCeiling Adapter

Model DEGRDamper with Equalizing Grid

PRODUCT OVERVIEWOPTIONS AND ACCESSORIES FOR CEILING DIFFUSERS

Model 4250Radial Sliding Blade Damper


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CM = CEILING MODULECM

= C

EILIN

G MO

DULE

3/8"(10)

Model DFS

Mounting Frames

Model DFA

BRACKET ISADJUSTABLE

SELF-TAPPINGSCREW

1 7/16"(37)

1/2" TO 7/8"(13 TO 22)1 1/16"

(27)

FRAMINGMEMBERAROUNDOPENING

(BY OTHERS)

MOUNTINGSCREWS

AREFIELD

INSTALLED

1 5/32"(29)

PLASTEROR

DRYWALLCEILING

Model DFA requires framing of theceiling opening with 'C' channel orwood studs for attachment withmounting screws (by others).

Model DFS is installed quickly andeasily using adjustable fasteningangle brackets which adapt to variousceiling thicknesses. Frames are roll-formed corrosion-resistant steel withstaked and mitered corners.

DFS (Steel), DFA (Aluminum) Drywall/Plaster Frame The DF Series are for mounting in finished drywall or plaster ceilings to accept any standard lay-in type grille, register, diffuser or otherceiling component. Installation of the air outlet is as simple as inserting them in a standard lay-in T-Bar type ceiling system.

The DF Series simplifies and reduces installation time compared with surface mount type diffusers. This is especially true where flexibleduct is utilized.

A major benefit is that the DF Series allows access to the ceiling plenum space above for maintenance purposes without the need forseparate access doors. The finished appearance is professional and aesthetically pleasing.

Standard Finish: AW Appliance White. Other finishes are available.

FACE VIEW

O.A. FACE = CM + 2 1/8" (54)O

.A. F

ACE

= C

M +

2 1

/8" (

54)

CM = CEILING MODULE

CM =

CEI

LING

MOD

ULE

1 1/2"(38)

3/8"(10)

FACE VIEW

O.A. FACE = NOM. + 1 1/2" (38)

O.A

. FAC

E =

NOM

. + 1

1/2

" (38

)

IMPERIALMODULES

METRICMODULES

ImperialUnits

(inches)

S.I.Units(mm)

S.I.Units(mm)

12 x 12 305 x 305 300 x 300

16 x 16 406 x 406 400 x 400

20 x 20 508 x 508 500 x 500

24 x 12 610 x 305 600 x 300

24 x 24 610 x 610 600 x 600

36 x 24 914 x 610 900 x 600

48 x 12 1219 x 305 1200 x 300

48 x 24 1219 x 1219 1200 x 600

60 x 12 1524 x 305 1500 x 300

IMPERIALMODULES

METRICMODULES

ImperialUnits

(inches)

S.I.Units(mm)

S.I.Units(mm)

12 x 12 305 x 305 300 x 300

16 x 16 406 x 406 400 x 400

20 x 20 508 x 508 500 x 500

24 x 12 610 x 305 600 x 300

24 x 24 610 x 610 600 x 600

Ceiling opening = CM + 1/4" (6)

Ceiling opening = CM + 1/4" (6)

OPTIONS:

EQT Earthquake TabsEarthquake (seismic) retaining safety tabs are available; factoryinstalled on diffusers when required by local building code that unitsbe independently restrained and safety wired to supporting structure.

SC Safety ChainAn optional safety chain is available on all of Nailor’s round ceilingdiffusers.

GK Foam GasketsFoam gasket is available on a selection of surface mount diffusers.

SR Square to Round Transition CollarTransition collars are for use on Nailor square neck diffuserswhere a round duct connection is required. Round necks are sizedfor flexible or hard duct connection. SR’s are shipped loose forfield installation and are supplied with barbed S clips.

ONA Offset Neck Adaptor

Fits outside duct (if a damper is required; order separately for remote mount. See Model OBDD).

EXTERNAL FOIL BACK INSULATION

EX External Insulation Blanket - Factory InstalledAn optional 1 1/2" thick foil back insulation is available installedon a majority of Nailor ceiling diffusers. The insulation has an Rvalue of 4.2.

EXB External Insulation Blanket - Ships LooseThis insulation is the same as above but is shipped loose for fieldinstallation.

MIB Molded Insulation Blanket - Factory InstalledThe molded insulation is available as an option on various 24" x24" square diffusers. The insulation has an R value of 6.0.

FINISHES:

AW Appliance White (standard)A white finish that is currently the industry standard. Closelymatches standard finishes supplied by the majority of T-Bar ceilingsystem manufacturers. (No additional cost).

AL AluminumContains suspended metal particles to give the appearance of asilver grey metallic or anodized finish. (No additional cost).

WH Off-WhiteHas a creamy appearance. (Additional cost)

BW British WhiteMatches most white ceiling tiles. (No additional cost)

BK BlackThis black has a matte finish. (Additional cost)

BA Black Interior/Appliance White FaceOptional on perforated diffusers. AW Appliance White is appliedon the perforated face and BK Black is applied on the interior ofthe backpan for a discreet appearance. (No additional cost)

SP SpecialThe Nailor range of diffusers are available in any color for specialarchitectural consideration. Custom colors are individually mixedto match customer supplied samples. (Additional cost)

ALSO AVAILABLE:

MI Mill Finish(No additional cost).

PPA Paint Prepared Aluminum (Washed only)Aluminum models only. (No additional cost).

PC Prime Coat(Additional cost).


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DIA. = D - 1/8" (3)

NOM.SIZE

SR = 5/8" (16)SR-O = 3 15/16" (100)NOM.

SIZE

NOM. + 1/8" (3)

1 1/2"(38)

Square Neck Size(inches)

Round Neck Size D(inches)

6 x 68 x 89 x 9

10 x 1012 x 1214 x 1415 x 1516 x 1618 x 1820 x 2021 x 2122 x 2224 x 24

4, 5, 64, 5, 6, 7, 86, 7, 8, 9

6, 7, 8, 9, 106, 8, 9, 10, 12

6, 8, 9, 10, 12, 146, 8, 10, 12, 14, 15

6, 8, 10, 12, 14, 15, 166, 8, 10, 12, 14, 15, 16, 18

6, 8, 10, 12, 14, 15, 16, 18, 206, 8, 10, 12, 14, 15, 16, 18, 20

6, 8, 10, 12, 14, 16, 18, 206, 8, 10, 12, 14, 15, 16, 18, 20, 24


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Air Balancing Devices

15/16"(24)

1 3/16"(30)

C

DAMPER BLADESFULLY OPEN

DAMPEROPERATOR

SCREWDRIVERSLOT

B

MOUNTINGSTRAPS

A

Radial Sliding Blade Damper The Model 4250 is a neck mountedradial sliding blade damper used inround neck diffuser applications toprovide fine volume control. Gangoperated radial blades slide at rightangles to the duct with minimalprotrusion above the diffuser neck;allowing the damper to work effectivelyin flexible duct applications.

Available in sizes 6", 8", 10", 12" and 14"(152, 203, 254, 305 and 356).

LISTED SIZE – 1/8" (3)

B(FULLY OPEN)

Butterfly DamperThe Model 4675 Butterfly Damper isan economical damper for volumebalancing in round neck diffusers.Adjustable friction pivots hold the bladesat the required setting. Adjusted from theface of the diffuser.

Not recommended for use with flexibleduct.

A

Radial Opposed Blade DamperA unique method of controlling volumethrough a diffuser providing premiumdesign quality and performance. Themulti-blade perimeter design offers trueradial flow at any setting.

A screwdriver slot, accessible throughthe diffuser, requires only a half turn toadjust from fully closed to fully open. Thedamper is designed to fit directly on theneck of the diffuser. Simple, convenientand accurate installation and operation.

Available with an optional operator arm.Model 4275-OA allows damperadjustment on the UNI Diffusers withoutremoving the inner cone assembly. Nominal Size (inches) Nominal Size (mm)

6 8 10 12 14 15 16 152 203 254 305 356 381 406 A 5 7/8 7 7/8 9 7/8 11 7/8 13 7/8 14 7/8 15 7/8 149 200 251 302 352 378 403 B 1 5/8 2 1/2 2 1/4 2 7/8 3 3/8 3 3/4 4 3/8 41 64 57 73 86 95 111 C 1 5/8 2 1/2 41 64

Model 4275

Model 4675

Nominal Size (inches) Nominal Size (mm) 6 8 10 12 14 152 203 254 305 356 A 5 7/8 7 7/8 9 7/8 11 7/8 13 7/8 149 200 251 302 352 B 2 1/2 3 1/2 4 1/2 5 1/2 6 1/2 64 89 114 140 165

SPRING CLIP

MOVABLEVANES (3)

ACTUATORVANE (1)

SUPPORTVANE

1"(25)

D = DUCT DIA. – 1/8" (3)

OPERATOR SLOT

PUSHNUT

CLIPATTACHED

UNDERBLADE

Model 4250


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DType SL OperatorThe SL Operator incorporates a screwdriver slot, which adjustsfrom the face of the diffuser. This operator is the standardsupplied when ordered separately.

Type DL OperatorThe DL Operator incorporates a lever that adjusts without theuse of tools. The lever operator extends through the diffuser face.

WIDTH = LISTED DUCT SIZE - 3/8" (10)

HEI

GH

T =

LIST

EDD

UC

T SI

ZE -

3/8"

(10)

2"(51)

Model OBD Type SL (Screwdriver Slot)Diffuser Mount – Face Operator


OPPOSED BLADE DAMPERSNailor Opposed Blade Dampers feature heavy gauge, roll-formed, corrosion-resistant steel or extruded aluminum blades and framewith miscellaneous steel components. Mill finish.

The gang operated multi-blade design with blades closing at 45 degrees permits fine volume control for accurate balancing with minimumdisturbance to the airflow pattern. Blades are individually pivoted on 1" (25) centers.

DIFFUSER MOUNT MODELS:OBD SteelOBD-A AluminumThis style of damper mounts directly on the neck and are sized to suit most Nailor diffusers. Uses steel barbed S-clips for easy fieldmounting or removal when ordered separately. Supplied as standard with a screwdriver slot operator (Type SL).

Can be specified as an integral part of the diffuser model by adding a - O (steel) or - OA (aluminum) suffix to the diffuser model.

Available with Type DL Lever Operator for use with 6200, 6400 and 6500 Series Pattern Diffusers and 6600 Series Plaque Diffusers.Permits balancing without removing the diffuser inner core assembly.

Model OBD Type DL (Lever Operator)Diffuser Mount – Face Operator

MOUNTSON NECK

LEVEROPERATOR

1 3/4"(44)

Min. Size = 4" x 2 1/2" (102 x 64)

Max. Size = 24" x 24" (610 x 610)


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Type SL OperatorThese models are supplied with a screwdriver slot faceoperator that is accessed from inside the duct by removingthe diffuser.

Type EH OperatorThese duct mount models feature an external 3/16" (5) hexoperator accessible from outside the duct; from the side ofthe duct when blades run vertically and from underneath theduct when blades run horizontally.

Type EN OperatorThese duct mount models feature an external glass-fillednylon screwdriver slot operator accessible from outside theduct; from underneath the duct when blades run vertically,and from the side of the duct when blades run horizontally.

Type QD Operator *A snap-in shaft extension with 'mini' hand locking quadrant isavailable as an optional accessory.

Type QX Operator *A snap-in shaft extension with 'mini' hand locking quadrantand 2" (51) stand-off bracket for externally insulated ducts.Order damper with blades parallel to horizontal ductdimension to ensure quadrant is located on vertical side ofthe duct.

*Not available on Model OBDD-A

Type QD or Type QX (Hand Quadrant)

STAND-OFFBRACKET

FORQX

MINI-QUADRANT

SNAP-INEXTENSION


DUCT MOUNT MODELS:OBDD SteelOBDD-A AluminumDesigned to be field mounted independently in the duct, separate from and behind the diffuser. They are sized to suit and offer a frictionfit in nominally sized ducts. They are secured with 1/2" (13) long sheet metal screws (by others) through the double walled sub-frame.Min. Size = 4" x 2 1/2" (102 x 64). Max. Size = 24" x 24" (610 x 610).

Model OBDD Type EH (Hex.)Duct Mount – External Operator

Model OBDD Type EN (Screwdriver Slot)Duct Mount – External Operator

WIDTH = LISTED DUCT SIZE - 3/8" (10) H

EIG

HT

= LI

STED

DU

CT

SIZE

- 1/8

" (3)

2"(51)

Model OBDD Type SL (Screwdriver Slot)Duct Mount – Face Operator


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1 5/8"(41)

2 1/2"(64)

MOUNTINGTAB WITH3/16" (5)

DIA. HOLES

INDIVIDUALLYADJUSTABLE

VANES

A (MAX. O.D. OF GRID) = D - 1/4" (6)

D = NOMINAL DUCT OPENING

Equalizing Grid for RoundNecksThe Model EGR is a duct mounted gridthat equalizes the airflow into thebranch duct or diffuser neck andprovides directional control. They areshipped loose for field installation. Theindividually adjusted vanes are frictionpivoted to hold the desired setting.

Recommended method of installationis flush with the take-off collar and withthe vanes perpendicular to the directionof the approaching airflow.

A (MAX. O.D. OF GRID) = D - 1/4" (6)


1 5/8"(41)

2 1/2"(64)


DIA. HOLES


VANES

Equalizing Grid for Square andRectangular NecksThe Models EGS and EGL are ductmounted grids that equalize the airflowinto the branch duct or diffuser neckand provide directional control. Theyare shipped loose for field installation.The individually adjusted vanes arefriction pivoted to hold the desiredsetting.

Recommended method of installationis flush with the take-off collar and withthe vanes perpendicular to the directionof the approaching airflow.

The suffix 'S' or 'L' indicates blades areparallel to the short or long dimension.

D - 1/4" (6)

D = NOMINAL OPENING

A

ADJUSTABLEDAMPERBLADE 1 5/8"

(41)2 1/2"(64)


DIA. HOLES


VANES

Damper with Equalizing Grid forRound NecksThe Model DEGR is a duct mountedcombination damper with equalizinggrid.

It performs as a volume extractor withdampering to near shut-off as well asequalizing the airflow into the branchduct or diffuser neck and providingdirectional control.

The individual adjustable vanes arefriction pivoted to hold the desiredsetting.

Damper blade may be adjusted to anyangle and locked in position withadjusting wires under screw heads.

Air Balancing and Directional Control Devices

Model EGR

Models EGS and EGL

Model DEGR


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DA (MAX. O.D. OF GRID) = D - 1/4" (6) A

1 5/8"(41)

2 1/2"(64)


DIA. HOLES

ADJUSTABLEDAMPERBLADE


VANES


Damper with Equalizing Grid forSquare and Rectangular NecksThe Models DEGS and DEGL are ductmounted combination dampers withequalizing grids. They perform as avolume extractor with dampering tonear shut-off as well as equalizing theairflow into the branch duct or diffuserneck and providing directional control.

The individual adjustable vanes arefriction pivoted to hold the desiredsetting.

Damper blade may be adjusted to anyangle and locked in position withadjusting wires under screw heads.

The suffix 'S' or 'L' indicates blades areparallel to the short or long dimension.

Air Balancing and Directional Control Devices

Models DEGS and DEGL


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D

Volume Extractors

MODEL SERIESEX Blades on 2" centersEXD Blades on 1" centersThe Model Series EX Volume Extractors uniformly divert airfrom the main duct into the branch take-off and across the face ofa grille or diffuser. Gang-operated parallel blades available on 2"(51) or 1" (25) centers pivot from full open to full closed with bladesoverlapping for shut-off. The curved blade design improves airflowby reducing turbulence, thereby reducing noise and pressuredrop.

Specify or order: Length x Width. (Length is first dimension.Blades are parallel to width, second dimension).

FEATURES:• Material: Galvanized steel.

• Minimum size: 6" x 4" (152 x 102).

• Maximum size: 36" x 36" (914 x 914).

Operator Types

2 1/2"(64)

L = NOMINAL LENGTH (DUCT)L - 1/4 (6)

CLOSED POSITION

1 3/8(35)

FULLYADJUSTABLE

SETTINGW

- 1/

4 (6

)W

= N

OM

INAL

WID

TH (D

UC

T)

EX = 2" (51) CENTERSEXD = 1" (25) CENTERS

Optional Accessories

RLDLocking device for

Models EX/EXD-1-R.

EX/EXD-1Standard unit with

adjusting strap.

EX/EXD-1-RRod operator for

external operation.

EX/EXD-3Screw gear operator.Adjusts with 3/16" (5)wrench (by others).

EX/EXD-2Linkage with 7/16" (11) square hole

(2 per unit). Remoteoperator (eg. Young

Regulator #1) by others.


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D

Quadrant Blanks for Models RNS3 and ARNS3 Round Neck Diffusers

Model/Accessory: 4293/QBModel 4293 Quadrant Blanks are designed specificallyfor use with the RNS3 Series Square Ceiling Diffusers.The Quadrant Blanks are constructed of steel with S-Clip brackets attached to the pie-shaped piece forinsertion onto the diffuser neck collar in order to provide1, 2, or 3-way discharge as required. Quadrant Blanksare available for all neck sizes, (to blank-off areasgreater than 90° [3-way blow], multiple quantities mustbe ordered. 2-way blow requires a quantity of two and1-way blow requires a quantity of three, per diffuser.Quadrant Blanks are shipped loose from the factory fortrouble-free installation in the field [by others]).

**Nailor recommends that ALL Quadrant Blanks areaffixed prior to installation of the diffuser**

Required Items1. Protective eyewear or safety glasses

2. Pair of work gloves

Installation Instructions 1. The steel, pie-shaped Quadrant Blanks with S-Clips

are shipped loose from the factory and shall beinstalled in the field (by others).

2. Prior to installation, properly position the QB in theneck of the diffuser for desired directional blow. Theround edge of the QB shall face the outside of theinlet, while the knife edge shall face the center of theinlet.

3. The S-Clips connected to the QB shall be securelypressed onto the neck of the diffuser. Once in place,the Quadrant Blank shall be held horizontally in placeat the desired location.

4. For additional Quadrant Blank installation, pleaserepeat steps 1 – 3.

Quadrant Blanks 4293 QB for Models RNS3,

ARNS3 Round Neck Diffusers

QB3 3-Way BlowQB2 2-Way BlowQC2 2-Way Corner BlowQB1 1-Way Blow


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Quadrant Blanks for Model Series RNS and RNSA Round Neck Diffusers

Model/Accessory: 4295/QBModel 4295 Quadrant Blanks are designed specificallyfor use with the RNS Series Stamped Square CeilingDiffusers. The Quadrant Blanks are constructed of steel,featuring a pie-shaped piece with a hinge pin that is pre-installed through pre-set holes for insertion into theriveted neck bracketry located in the diffuser, providing1, 2, or 3-way discharge as required. Quadrant Blanksare available in all neck sizes, (to blank-off areas greaterthan 90° [3-way blow], multiple quantities must beordered. 2-way blow requires a quantity of two and 1-way blow requires a quantity of three, per diffuser.Quadrant Blanks are shipped loose from the factory fortrouble-free installation in the field [by others]).

**Nailor recommends that ALL Quadrant Blanks areaffixed prior to installation of the diffuser**

Required Items1. Protective eyewear or safety glasses

2. Pair of work gloves

Installation Instructions 1. The steel, pie-shaped Quadrant Blank is shipped

loose with a hinge pin pre-installed through pre-setholes, to provide trouble-free installation, in the field(by others).

2. Prior to installation, properly position the QB aroundthe neck of the diffuser for desired directional blow.The elevated eyehole located above the hinged pinon the quadrant blank, shall be facing in the uprightposition before the piece is installed in the diffuser.The round edge of the QB shall face the outside ofthe inlet collar, while the knife edge shall face thecenter of the inlet.

3. The hinge pins on the QB shall slide securely into thepre-set holes of the riveted neck bracketry located inthe diffuser inlet collar. Once in place, the knife edgeof the QB shall rest on top of the concealed neckbracketry.

4. For additional Quadrant Blank installation, repeatsteps 1 – 3.

Quadrant Blanks 4295 QB for Models RNS, ARNS,RNS2, RNSA1, RNSA2, ARNSA

Round Neck Diffusers

QB3 3-Way BlowQB2 2-Way BlowQC2 2-Way Corner BlowQB1 1-Way Blow

Documents

Nailor Industries Inc. - NailorCatalog ... · PDF filecone, removable core design is available in most ceiling module sizes, ... • Steel stamped shapes for uniformity. • High neck